Why aren’t car seats a safe resting place for extended periods?

Infants shouldn’t be in the car seat for extended periods of time, which is why we have the Bassinet as another alternative for strolls or sleeping outside of the vehicle. Experts say that the time limit that an infant should be in a car seat sleeping is two hours. When we designed the MESA, we considered the angle and how the baby should safely lie while in the carrier, base and stroller. However, the MESA car seat is not approved for sleep.